R
Ralf Srama
Researcher at University of Stuttgart
Publications - 269
Citations - 8158
Ralf Srama is an academic researcher from University of Stuttgart. The author has contributed to research in topics: Cosmic dust & Interplanetary dust cloud. The author has an hindex of 43, co-authored 264 publications receiving 7101 citations. Previous affiliations of Ralf Srama include Baylor University & Max Planck Society.
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Triple F—a comet nucleus sample return mission
Michael Küppers,H. U. Keller,Ekkehard Kührt,M. F. A'Hearn,Kathrin Altwegg,R. Bertrand,Henner Busemann,M. T. Capria,Luigi Colangeli,B. J. R. Davidsson,Pascale Ehrenfreund,Jörg Knollenberg,Stefano Mottola,A. Rathke,P. Weiss,Michael E. Zolensky,E. Akim,A. Basilevsky,E. M. Galimov,Mikhail Gerasimov,Oleg Korablev,I. Lomakin,M. Marov,M. Martynov,M. Nazarov,A. Zakharov,Lev Zelenyi,A. Aronica,Andrew J. Ball,Cesare Barbieri,Akiva Bar-Nun,J. Benkhoff,Jens Biele,N. Biver,Jürgen Blum,D. Bockelée-Morvan,Oliver Botta,Jan Hendrik Bredehöft,Fabrizio Capaccioni,S. Charnley,Edward A. Cloutis,Hervé Cottin,Gabriele Cremonese,Jacques Crovisier,Sarah Crowther,Elena Mazzotta Epifani,Francesca Esposito,Andrea C. Ferrari,Francesca Ferri,Marco Fulle,Jamie Gilmour,Fred Goesmann,N. Gortsas,Simon F. Green,Olivier Groussin,Eberhard Grün,P. J. Gutiérrez,Paul Hartogh,Torsten Henkel,Martin Hilchenbach,T.-M. Ho,Gerda Horneck,Stubbe F. Hviid,Wing-Huen Ip,Annette Jäckel,Elmar K. Jessberger,Reinald Kallenbach,G. Kargl,Norbert I. Kömle,A. Korth,Konrad J. Kossacki,C. Krause,Harald Krüger,Z.-Y. Li,Javier Licandro,J. J. López-Moreno,Stephen C. Lowry,Ian C. Lyon,Gianfranco Magni,Urs Mall,Ingrid Mann,Wojciech J. Markiewicz,Zita Martins,M. Maurette,Uwe J. Meierhenrich,Vito Mennella,T. C. Ng,Larry R. Nittler,Pasquale Palumbo,Martin Pätzold,Dina Prialnik,Miriam Rengel,Hans Rickman,J. E. Rodriguez,R. Roll,Detlef Rost,Alessandra Rotundi,Scott A. Sandford,Maria Schönbächler,Holger Sierks,Ralf Srama,Rhonda M. Stroud,Slawomira Szutowicz,C. Tornow,Stephan Ulamec,M. Wallis,W. Waniak,Paul R. Weissman,Rainer Wieler,Peter Wurz,Kai Leung Yung,John C. Zarnecki +111 more
TL;DR: The Triple F ( Fresh From the Fridge) mission as mentioned in this paper was proposed to extract three sample cores of the upper 50 cm from three locations on a cometary nucleus and return them cooled to Earth for analysis in the laboratory.
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Modelling DESTINY+ interplanetary and interstellar dust measurements en route to the active asteroid (3200) Phaethon
Harald Krüger,P. Strub,Ralf Srama,Masanori Kobayashi,Tomoko Arai,Hiroshi Kimura,Takayuki Hirai,Georg Moragas-Klostermeyer,Nicolas Altobelli,Veerle Sterken,Jessica Agarwal,Maximilian Sommer,Eberhard Grün +12 more
TL;DR: In this article, the authors used two up-to-date computer models, the ESA Interplanetary Meteoroid Engineering Model (IMEM, Dikarev et al., 2005a, c), and the interstellar dust module of the Interplanned Meteoroid environment for EXploration model (IMEX), to study the detection conditions and fluences of interplanetary and interstellar dust with DDA.
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Plasma production by secondary impacts: Implications for velocity measurements by in-situ dust detectors
TL;DR: In this paper, a number of in-situ cosmic dust detectors derive the dust particle velocities from measurement of the risetimes of the impact plasma signal, which is in turn determined by the magnitude and geometry of the applied electric field and on the ion species present.
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Sample return of interstellar matter (SARIM)
Ralf Srama,Thomas Stephan,Eberhard Grün,Norbert Pailer,Anton T. Kearsley,Amara L. Graps,Rene Laufer,Pascale Ehrenfreund,Nicolas Altobelli,Kathrin Altwegg,S. Auer,Jack Baggaley,Mark J. Burchell,James Carpenter,Luigi Colangeli,Francesca Esposito,Simon F. Green,H. Henkel,Mihaly Horanyi,Annette Jäckel,Sascha Kempf,Neil McBride,Georg Moragas-Klostermeyer,Harald Krüger,Pasquale Palumbo,A. Srowig,Mario Trieloff,Peter Tsou,Zoltan Sternovsky,Oliver Zeile,Hans-Peter Röser +30 more
TL;DR: SARIM as discussed by the authors is optimized for the collection and discrimination of interplanetary dust grains and returns them to Earth to allow for an extraction and investigation of interstellar samples by latest laboratory technologies.
Journal ArticleDOI
Dynamics of dust ejected from Enceladus: Application to the Cassini dust detector
TL;DR: In this paper, the authors studied the dynamics of Enceladus' E ring impactors using the cosmic dust analyzer (CDA) mounted on the Cassini spacecraft.